A rubber check - What do you expect from a rubber? It is meant to stretch and bounce. Well, in this world of economy, we have a word, which we call, a bounced check. A rubber check means the same and we have used the word rubber in connection with bounce.
1. He was arrested because of so many rubber checks he had issued to his clients.
2. This is not a rubber check, you will get the money.
3. I don't owe you a check, but I am paying you and hey, this is not a rubber check even, so you need not worry about it.